Substrate-Controlled Succession of Marine Bacterioplankton Populations Induced by a Phytoplankton Bloom
Substrate-Controlled Succession of Marine Bacterioplankton Populations Induced by a Phytoplankton Bloom
复制标题
DOI：
10.1126/science.1218344
复制
发表时间：
2012-05-04
期刊：
影响因子：
56.9
通讯作者：
Amann, Rudolf
中科院分区：
文献类型：
--
作者：
Teeling, Hanno;Fuchs, Bernhard M.;Amann, Rudolf
浮游植物盛开的特征是春季的温带海边缘区。我们调查了北海对硅藻花朵的细菌反应，并观察到属属水平分辨率的人群的动态演替。发现了碳水化合物活性酶（尤其是TONB依赖性转运蛋白）和磷酸盐获取策略的分类学不同的表达，这表明细菌群，gammaproteobacteria的不同种群和αProteobacteria是连续的藻类有机物的专业分解。我们的结果表明，藻类底物的可用性提供了一系列的生态壁ches，其中专业人群可以在其中盛开。这揭示了浮游物种尽管看似均匀的栖息地，但如何通过直接竞争逃避灭绝。
Phytoplankton blooms characterize temperate ocean margin zones in spring. We investigated the bacterioplankton response to a diatom bloom in the North Sea and observed a dynamic succession of populations at genus-level resolution. Taxonomically distinct expressions of carbohydrate-active enzymes (transporters; in particular, TonB-dependent transporters) and phosphate acquisition strategies were found, indicating that distinct populations of Bacteroidetes, Gammaproteobacteria, and Alphaproteobacteria are specialized for successive decomposition of algal-derived organic matter. Our results suggest that algal substrate availability provided a series of ecological niches in which specialized populations could bloom. This reveals how planktonic species, despite their seemingly homogeneous habitat, can evade extinction by direct competition.